Crown prosthesis



FIG. 1 is a perspective of a crown prosthesis, showing my new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a rear elevation thereof;

FIG. 4 is a left side elevation thereof;

FIG. 5 is a right side elevation thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a cross section taken along line 8-8 in FIG. 6.

The broken line showing of FIG. 8 is included for the purpose of illustrating environment and forms no part of the claimed design. 

I claim the ornamental design for a crown prosthesis, as shown and described. 